-If @arv user current@ is able to access the API server, it will print out the unique identifier associated with your account. Here is an example (you will receive a different identifier):
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-bc. qr1hi-xioed-9z2p3pn12yqdaem
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-However, if you receive the following message:
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-bc. ARVADOS_API_HOST and ARVADOS_API_TOKEN need to be defined as environment variables
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-Then follow the instructions for "getting an API token,":{{site.basedoc}}/user/reference/api-tokens.html and return to this document.
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-The unique identifier represents your identity in the Arvados system and is similar to the concept of a pointer or a foreign key. You may de-reference (get the contents of) any identifier returned by the "arv" command using the @-h@ command line option. For example: